The flexmix Package - NexTag Supports Open Source Initiatives
The flexmix Package - NexTag Supports Open Source Initiatives
The flexmix Package - NexTag Supports Open Source Initiatives
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14 FLXMRglmfix<br />
FLXMRglmfix<br />
FlexMix Interface to Generalized Linear Models with fixed coefficients<br />
Description<br />
This implements a driver for FlexMix which interfaces the glm family of models and where it is<br />
possible to specify fixed (constant) or nested varying coefficients or to ensure that in the Gaussian<br />
case the variance estimate is equal for all components.<br />
Usage<br />
FLXMRglmfix(formula = . ~ ., fixed=~0, varFix = FALSE,<br />
nested = NULL,<br />
family = c("gaussian", "binomial", "poisson", "Gamma"),<br />
offset = NULL)<br />
Arguments<br />
formula<br />
fixed<br />
varFix<br />
nested<br />
family<br />
offset<br />
A formula which is interpreted relative to the formula specified in the call to<br />
<strong>flexmix</strong> using update.formula. Default is to use the original <strong>flexmix</strong><br />
model formula.<br />
A formula which specifies the additional regressors for the fixed (constant) coefficients.<br />
A logical indicating if the variance estimate for Gaussian components should be<br />
constrained to be equal for all components. It can be also a vector specifying the<br />
number of components with equal variance.<br />
An object of class FLXnested or a list specifying the nested structure.<br />
A character string naming a glm family function.<br />
This can be used to specify an a priori known component to be included in the<br />
linear predictor during fitting.<br />
Value<br />
Returns an object of class FLXMRglmfix.<br />
Author(s)<br />
Friedrich Leisch and Bettina Gruen<br />
See Also<br />
FLXMRglm
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